SkinCeuticals' C E Ferulic features a synergistic antioxidant combination of ferulic acid and pure vitamin C and E to enhance your skin's protection against environmental damage caused by free radicals. In addition to antioxidant protective benefits, this formula improves signs of aging and photodamage to reduce the appearance of lines and wrinkles while firming and brightening your complexion. Lastly, this powerful formula helps neutralize free radicals induced by UVA/UVB, infrared radiation (IRA) and ozone pollution (O3).